<template>
    <div>

        <!--面包屑导航区域-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!--卡片视图区域-->
        <el-card class="box-card">
            <!--gutter=20是每一列之间的20的间距-->
            <el-row :gutter="20">
                <el-col :span="7">
                    <!--clearable是增加清空功能， @clear是绑定输入框清空事件-->
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">

                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <el-table :data="userList" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <!-- v-model是绑定一个布尔值，为真的开关打开-->

                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template>

                        <el-button type="primary" icon="el-icon-edit" size="mini" ></el-button>
                        <!-- 删除按钮 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini"></el-button>
                        <!-- 分配角色按钮 tooltip是文字提示，当鼠标放上去会显示 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>

            </el-table>

        <!--分页区域-->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]"
                           :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>

        <!--对话框-->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
        </el-dialog>



    </div>
</template>

<script>
    export default {
        name: "Users",

        data(){
            // 验证邮箱的规则
            var checkEmail = (rule, value, cb) => {
                // 验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

                if (regEmail.test(value)) {
                    // 合法的邮箱
                    return cb()
                }

                cb(new Error('请输入合法的邮箱'))
            }

            // 验证手机号的规则
            var checkMobile = (rule, value, cb) => {
                // 验证手机号的正则表达式
                const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

                if (regMobile.test(value)) {
                    return cb()
                }

                cb(new Error('请输入合法的手机号'))
            }
            return {
            //    获取用户列表的参数对象
                queryInfo: {
                    query: '',
                    // 当前的页数
                    pagenum: 1,
                    // 当前每页显示多少条数据
                    pagesize: 2
                },
                userList:[],
                total:0,
                addDialogVisible: false,
                // 添加用户的表单数据
                addForm: {
                    username: '',
                    password: '',
                    email: '',
                    mobile: ''
                },
                // 添加表单的验证规则对象
                addFormRules: {
                    username: [
                        {required: true, message: '请输入用户名', trigger: 'blur'},
                        {
                            min: 3,
                            max: 10,
                            message: '用户名的长度在3~10个字符之间',
                            trigger: 'blur'
                        }
                    ],
                    password: [
                        {required: true, message: '请输入密码', trigger: 'blur'},
                        {
                            min: 6,
                            max: 15,
                            message: '用户名的长度在6~15个字符之间',
                            trigger: 'blur'
                        }
                    ],
                    email: [
                        {required: true, message: '请输入邮箱', trigger: 'blur'},
                        {validator: checkEmail, trigger: 'blur'}
                    ],
                    mobile: [
                        {required: true, message: '请输入手机号', trigger: 'blur'},
                        {validator: checkMobile, trigger: 'blur'}
                    ]
                }
            }
        },

        created() {
            this.getUserList()
        },

        methods:{
            async getUserList() {
                const {data:res} = await this.$http.get('users', {params:this.queryInfo})
                if (res.meta.status !== 200) {
                    return this.$message.error('获取用户列表失败！')
                }

                this.userList = res.data.users
                this.total = res.data.total
            },

            // 监听 pagesize 改变的事件
            handleSizeChange(newSize) {
                // console.log(newSize)
                this.queryInfo.pagesize = newSize
                this.getUserList()
            },
            // 监听 页码值 改变的事件
            handleCurrentChange(newPage) {
                console.log(newPage)
                this.queryInfo.pagenum = newPage
                this.getUserList()
            },

            async userStateChanged(userinfo) {
                //put一般用于发起修改请求
                const { data: res } = await this.$http.put(
                    //字符串中出啊如变量
                    `users/${userinfo.id}/state/${userinfo.mg_state}`
                )
                if (res.meta.status !== 200) {
                    userinfo.mg_state = !userinfo.mg_state
                    return this.$message.error('更新用户状态失败！')
                }
                this.$message.success('更新用户状态成功！')
            },

            addDialogClosed() {
                this.$refs.addFormRef.resetFields()
            },

            addUser() {
                this.$refs.addFormRef.validate(async valid => {
                    if (!valid) return
                    // 可以发起添加用户的网络请求
                    const { data: res } = await this.$http.post('users', this.addForm)

                    if (res.meta.status !== 201) {
                        this.$message.error('添加用户失败！')
                    }

                    this.$message.success('添加用户成功！')
                    // 隐藏添加用户的对话框
                    this.addDialogVisible = false
                    // 重新获取用户列表数据
                    this.getUserList()
                })
            }
        }
    }
</script>

<style scoped>

</style>
